Yes you have to open your ps3 now its not easy bc its allot of screws and takes time, and yes you will lose your warranty if you open it.
Don't open the ps3. Your laser is likely ruined Blu-ray lasers are very delicate. You're best off sending it to sony and paying at most $150 (unless you're in warranty, which it's free).
You may even get your gamecube discs back, but probably not. It just depends on which you want more: 1. Your discs out but stuck with a non-working ps3 2.
Your ps3 working by sony but a slim chance of getting your discs back.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.